Question

I have a string like:

Brief Exercise 1-1 Types of Businesses Brief Exercise 1-2 Forms of Organization Brief Exercise 1-3 Business Activities.

I want to break above string using regular expression so that it can be like:

Types of Businesses
Forms of Organization
Business Activities.

Please don’t say that I can break it using 1-1, 1-2 and 1-3 because it will bring the word “Brief Exercise” in between the sentences. Later on I can have Exercise 1-1 or Problem 1-1 also. So I want some general Regular expression.

Any efficient regular expression for this scenario ?

Answer 1

This regular expression will match on “Brief Exercise 1-” followed by a digit and an optional second digit:

@"Brief Exercise 1-\d\d?"

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Update:

Since you might have “Problem” as well, an alternation between Exercise and Problem is also needed (using non capturing parenthesis):

@"Brief (?:Exercise|Problem) 1-\d\d?"